paginate and having clause

var table_module = "calls";
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$result     = $this->model_class::select(DB::raw($this->table_module.".*,
                                            sys_rel.rel_to_module as module_name,
                                            sys_rel.rel_to_id as module_id,
                                            (CASE rel_to_module
                                                    WHEN sys_rel.rel_to_module = 'leads' THEN ( SELECT CONCAT(leads.leads_first_name, ' ', leads.leads_last_name) FROM leads WHERE leads.leads_serial_id = module_id LIMIT 1)
                                                WHEN sys_rel.rel_to_module = 'contacts' THEN ( SELECT CONCAT(contacts.contacts_first_name, ' ', contacts.contacts_last_name) FROM contacts WHERE contacts.contacts_serial_id = module_id LIMIT 1)
                                                WHEN sys_rel.rel_to_module = 'org'  THEN ( SELECT org_name FROM org WHERE org.org_serial_id = module_id LIMIT 1)
                                                WHEN sys_rel.rel_to_module is NULL THEN '-'
                                        END) as calls_parent_id"))
                                            ->leftjoin('sys_rel', $this->table_module.'.rel_serial_id', '=', 'sys_rel.rel_serial_id')
                                            ->where('company_id', '=', $company_id)
                                            ->where('deleted', '=', 0)
                                            ->where($this->table_module.'.rel_serial_id', '>', 0)
                                            ->having('calls_parent_id', 'LIKE', '%Wehner%')
                                            ->get()->toArray();
                                            //or ->paginate(10);